If'n you use 24-hour time, it's clear whether you mean noon or midnight, and, if midnight, which one you mean (23:59:59 belongs to today; 00:00:00 to tomorrow), and there's no need for the silly "law takes effect at 12:01 AM" business.

In any event, there was no sign of a gale when I poked my head out the back door, so maybe the time in question was midnight last night, the least plausible interpretation. Or, maybe, the wind is supposed to arrive later today, and stick around until noon or possibly midnight?